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Sensorless control of electro-mechanical flight control actuators

Kowalski, Robert and Juchmann, Patrick (2022) Sensorless control of electro-mechanical flight control actuators. Deutscher Luft- und Raumfahrtkongress (DLRK) 2022, 2022-09-27 - 2022-09-29, Dresden, Deutschland. (Unpublished)

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Abstract

Electro-mechanical flight control actuators become a viable option to replace conventional hydraulic actuators in future more electric aircraft. A rotor angle measurement is generally required for field-oriented control of the electrical machine and usually obtained from a safety-critical resolver. It contributes, however, to a rising local hardware complexity with negative impact on space allocation, weight, motor inertia, reliability and cost. This paper investigates sensorless control strategies which might substitute the resolver by an accurate estimate value. A hybrid observer is implemented that allows position control without an angle sensor at all speeds. In the high speed domain, the extended electromotive force of the permanent magnet synchronous machine is used for angle estimation, whereas in the low speed domain including standstill anisotropy properties of the motor are exploited applying the alternating injection method. The performance of the control algorithm is evaluated on an aileron actuator test rig for large civil aircraft.

Item URL in elib:https://elib.dlr.de/188640/
Document Type:Conference or Workshop Item (Speech)
Title:Sensorless control of electro-mechanical flight control actuators
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Kowalski, RobertUNSPECIFIEDhttps://orcid.org/0000-0002-5458-3796UNSPECIFIED
Juchmann, PatrickUNSPECIFIEDhttps://orcid.org/0000-0002-3120-1820UNSPECIFIED
Date:26 September 2022
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Unpublished
Keywords:electro-mechanical actuator; primary flight control; sensorless control; alternating injection
Event Title:Deutscher Luft- und Raumfahrtkongress (DLRK) 2022
Event Location:Dresden, Deutschland
Event Type:national Conference
Event Start Date:27 September 2022
Event End Date:29 September 2022
Organizer:Deutsche Gesellschaft für Luft- und Raumfahrt (DGLR)
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Components and Systems
DLR - Research area:Aeronautics
DLR - Program:L CS - Components and Systems
DLR - Research theme (Project):L - Aircraft Systems
Location: Braunschweig
Institutes and Institutions:Institute of Flight Systems > Safety Critical Systems&Systems Engineering
Institute of Flight Systems
Deposited By: Kowalski, Robert
Deposited On:29 Nov 2022 14:49
Last Modified:24 Apr 2024 20:49

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